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-rw-r--r--sysdeps/x86_64/Makefile4
1 files changed, 4 insertions, 0 deletions
diff --git a/sysdeps/x86_64/Makefile b/sysdeps/x86_64/Makefile
index e50bcad..6c28318 100644
--- a/sysdeps/x86_64/Makefile
+++ b/sysdeps/x86_64/Makefile
@@ -19,6 +19,10 @@ gen-as-const-headers += locale-defines.sym
endif
ifeq ($(subdir),elf)
+# There is no good reason to use MMX in x86-64 ld.so with GCC.
+CFLAGS-.os += $(if $(filter $(@F),$(patsubst %,%.os,$(all-rtld-routines))),\
+ -mno-mmx)
+
sysdep-dl-routines += tlsdesc dl-tlsdesc
tests += ifuncmain8